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- Mission, Supervision and Scope of the JHU DACI Laboratory
- Client Services
- Collection and Handling of Specimens
- Order Forms
- Price List
- Billing Information
- References Related to Laboratory Tests
- Journal Article on Mold by Dr. Robert G. Hamilton
- Instructions for Dust Collection for Mold
Mission: The Johns Hopkins University Dermatology, Allergy and Clinical Immunology (DACI) Reference Laboratory is a federally-(Clinical Laboratory Improvement Act - 1988) licensed clinical laboratory that began operation in 1982. Our mission is to provide comprehensive, high quality diagnostic allergy and immunology testing to patients throughout North America with asthma, allergy, and immunologic disorders.
Supervision: The DACI Reference Laboratory participates as an integral component of the Johns Hopkins University (JHU) clinical laboratory network that is operated by the Departments of Medicine and Pathology. In 1989, the DACI Laboratory physically moved from the Good Samaritan Hospital to the Johns Hopkins Asthma and Allergy Center on the Bayview Campus of the Johns Hopkins Medical Institutions in Baltimore, MD. It is directed by Robert G. Hamilton Ph.D., D.ABMLI and N. Franklin Adkinson, M.D. serving as the Medical Director. The laboratory staff include Jack Wisenauer BS, MT (ASCP) (Supervisor), Anne Pence (Clinical Coordinator) and Charles Bronzert BS, MLT.
Scope: The JHU DACI Reference Laboratory offers an extensive menu of laboratory tests that include allergen-specific IgE measurements to approximately 300 pollen, epidermal, mold spore, mite, food, drug, venom, and occupational allergen specificities. The laboratory specializes in Hymenoptera (insect sting) venom specific IgE and IgG antibody measurements. In addition, the DACI Laboratory performs hypersensitivity pneumonitis precipitin panels, and environmental mold measurements.
Our laboratory representatives are available to respond to telephone inquiries concerning test information, patient results, laboratory report, and billing questions. They may be reached by calling 800/344-3224 (DACI) or 410/550-2029, Monday through Friday, from 8:30 a.m. to 5 p.m. (EST). During non-business hours, our voice message service is available to take your message. Additional tests may be requested on specimens that have been previously sent by means of a faxed message to 410-550-2030 or email@example.com and total serum IE. Please do not send overnight packages on Friday because no one is in the laboratory to receive them on Saturday.
- Specific IgE Antibody Testing (including insects)
- Hymenoptera Venom Specific IgG Antibody Testing
- Precipitins for Hypersensitivity Pneumonitis
- Environmental Mold Measurements
Two types of test specimens are analyzed in the DACI laboratory: serum and environmental surface or airborne dust (mold only).
Serum: Human serum is required for all antibody tests. Please note: not open on weekends.The Johns Hopkins DACI Reference Laboratory fee schedule lists the specimen volume requirements for each individual test. In general, 0.3 ml of serum is required for each serological test. The requested volumes of serum provide for the analysis of tests in replicate with some residual for repeat analyses that may be needed to insure test accuracy. All remaining specimens are stored up to 7 years; This permits the performance of repeat measurements or additional tests that can be performed if they are desired at a later date. We do not require that specimens be frozen and sent on dry ice by overnight delivery. Rather, we ask that the serum specimen be placed in a 12 x 75 mm plastic tube, frozen, and shipped in an IATA-approved packaging. The frozen specimen may be sent at room temperature in our mailer within the continental United States.
For collection and processing of serum, draw 10 ml of whole blood by venipuncture into a syringe or red or tiger top vacutainer without anticoagulant. If collected in a syringe, transfer the contents into a glass or plastic tube with no anticoagulant. Next, allow the blood to clot for 1-2 hours at room temperature. Centrifuge and harvest the serum, free of cells into a plastic (5ml) 12x75mm plastic test tube and seal tightly with a plastic top. If no centrifuge is available, refrigerate the blood tube overnight so the white and red blood cells will settle and then carefully transfer the serum into the plastic tube. Stopper the tube tightly to prevent loss of serum during shipping. Label the tube with the patient’s name, date of birth, date of collection, and physician's name. If the serum is to be held for several days or over a weekend, store it frozen until the time of shipping.
Surface Dust: Household, office or school dust specimens can be collected from floor or other surfaces with a single use nozzle sock filter unit available from the Johns Hopkins DACI Reference Laboratory. It collects particulate larger than 1 micron in diameter. Seal the crude dust specimen in a plastic bag, label it with the patient's name, sampling location and collection date and freeze it until the time of shipping.
For overnight shipping using the following address:
JHU DACI Reference Laboratory
Johns Hopkins Asthma and Allergy Center
5501 Hopkins Bayview Circle
Baltimore, MD 21224, USA
For first class domestic mail only, use the following address:
JHU DACI Reference Laboratory
P.O. Box 26037
Baltimore, MD 21224, USA.
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- Bill physician/laboratory account
- Patient pay by check/creditcard (VISA, MC, AM EX, DISCOVER)
- Bill Medicare
All Medicare patients must sign the Advance Beneficiary Notice
- Bill Maryland (only) Medical Assistance
- Bill Blue Cross/Blue Shield (not HMO plan)
- Bill Commercial insurance (not HMOs)
All patients with Managed Care plans must sign the JHU Managed Care Release
- HMOs (other than Maryland) patient pay with check/Creditcard
All patients with HMOs must sign the JHU Private Contract for Medical Services
All patients must complete the JHU Professional Fee Patient Registration Form
Our laboratory representatives are available to respond to telephone concerning about test information, patient results, laboratory reports, and billing questions. They may be reached by calling 800-344-3224 (DACI) or 410-550-2029, Monday through Friday, from 8:30 a.m. to 5 p.m. (EST). During non-business hours, our voice message service is available to take your message. Additional tests may be requested on specimens that have been previously sent by means of a faxed message to 410-550-2030 or firstname.lastname@example.org. Please do not send overnight packages on Friday because no one is in the laboratory to receive them on Saturday.
For Selected References Related to Diagnostic Allergy Laboratory Tests Performed in the JHU DACI Reference Laboratory click here.